Sediment depth is given in mbsf. No methane gas hydrates are present at these depths. Data on ODP Hole 164-995B can be found in Hoehler et al. (2000) dataset: doi:10.1594/PANGAEA.803660. Data on ODP Hole 164-994A are shipboard measurements by Paull, Matsumoto, Wallace, et al. (1996, doi:10.2973/odp.proc.ir.164.1996) and data on piston core Car_rise11-8PC are shipboard determinations by Borowski (1998).